mirror of
https://github.com/pierre42100/ComunicWeb
synced 2024-11-22 20:19:21 +00:00
334 lines
13 KiB
JavaScript
334 lines
13 KiB
JavaScript
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/* jshint browser: true */
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( function( window, $ )
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{
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"use strict";
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/*
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* Represenets an editor
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* @constructor
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* @param {DOMNode} element - The TEXTAREA element to add the Wysiwyg to.
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* @param {object} userOptions - The default options selected by the user.
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*/
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function Wysiwyg( element, userOptions ) {
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// This calls the $ function, with the element as a parameter and
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// returns the jQuery object wrapper for element. It also assigns the
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// jQuery object wrapper to the property $editor on `this`.
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this.selectedRange = null;
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this.editor = $( element );
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var editor = $( element );
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var defaults = {
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hotKeys: {
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"Ctrl+b meta+b": "bold",
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"Ctrl+i meta+i": "italic",
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"Ctrl+u meta+u": "underline",
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"Ctrl+z": "undo",
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"Ctrl+y meta+y meta+shift+z": "redo",
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"Ctrl+l meta+l": "justifyleft",
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"Ctrl+r meta+r": "justifyright",
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"Ctrl+e meta+e": "justifycenter",
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"Ctrl+j meta+j": "justifyfull",
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"Shift+tab": "outdent",
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"tab": "indent"
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},
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toolbarSelector: "[data-role=editor-toolbar]",
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commandRole: "edit",
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activeToolbarClass: "btn-info",
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selectionMarker: "edit-focus-marker",
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selectionColor: "darkgrey",
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dragAndDropImages: true,
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keypressTimeout: 200,
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fileUploadError: function( reason, detail ) { console.log( "File upload error", reason, detail ); }
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};
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var options = $.extend( true, {}, defaults, userOptions );
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var toolbarBtnSelector = "a[data-" + options.commandRole + "],button[data-" + options.commandRole + "],input[type=button][data-" + options.commandRole + "]";
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this.bindHotkeys( editor, options, toolbarBtnSelector );
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if ( options.dragAndDropImages ) {
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this.initFileDrops( editor, options, toolbarBtnSelector );
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}
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this.bindToolbar( editor, $( options.toolbarSelector ), options, toolbarBtnSelector );
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editor.attr( "contenteditable", true )
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.on( "mouseup keyup mouseout", function() {
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this.saveSelection();
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this.updateToolbar( editor, toolbarBtnSelector, options );
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}.bind( this ) );
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$( window ).bind( "touchend", function( e ) {
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var isInside = ( editor.is( e.target ) || editor.has( e.target ).length > 0 ),
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currentRange = this.getCurrentRange(),
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clear = currentRange && ( currentRange.startContainer === currentRange.endContainer && currentRange.startOffset === currentRange.endOffset );
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if ( !clear || isInside ) {
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this.saveSelection();
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this.updateToolbar( editor, toolbarBtnSelector, options );
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}
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} );
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}
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Wysiwyg.prototype.readFileIntoDataUrl = function( fileInfo ) {
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var loader = $.Deferred(),
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fReader = new FileReader();
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fReader.onload = function( e ) {
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loader.resolve( e.target.result );
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};
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fReader.onerror = loader.reject;
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fReader.onprogress = loader.notify;
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fReader.readAsDataURL( fileInfo );
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return loader.promise();
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};
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Wysiwyg.prototype.cleanHtml = function( o ) {
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var self = this;
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if ( $( self ).data( "wysiwyg-html-mode" ) === true ) {
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$( self ).html( $( self ).text() );
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$( self ).attr( "contenteditable", true );
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$( self ).data( "wysiwyg-html-mode", false );
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}
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// Strip the images with src="data:image/.." out;
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if ( o === true && $( self ).parent().is( "form" ) ) {
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var gGal = $( self ).html;
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if ( $( gGal ).has( "img" ).length ) {
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var gImages = $( "img", $( gGal ) );
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var gResults = [];
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var gEditor = $( self ).parent();
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$.each( gImages, function( i, v ) {
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if ( $( v ).attr( "src" ).match( /^data:image\/.*$/ ) ) {
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gResults.push( gImages[ i ] );
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$( gEditor ).prepend( "<input value='" + $( v ).attr( "src" ) + "' type='hidden' name='postedimage/" + i + "' />" );
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$( v ).attr( "src", "postedimage/" + i );
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}
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} );
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}
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}
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var html = $( self ).html();
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return html && html.replace( /(<br>|\s|<div><br><\/div>| )*$/, "" );
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};
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Wysiwyg.prototype.updateToolbar = function( editor, toolbarBtnSelector, options ) {
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if ( options.activeToolbarClass ) {
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$( options.toolbarSelector ).find( toolbarBtnSelector ).each( function() {
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var self = $( this );
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var commandArr = self.data( options.commandRole ).split( " " );
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var command = commandArr[ 0 ];
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// If the command has an argument and its value matches this button. == used for string/number comparison
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if ( commandArr.length > 1 && document.queryCommandEnabled( command ) && document.queryCommandValue( command ) === commandArr[ 1 ] ) {
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self.addClass( options.activeToolbarClass );
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}
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// Else if the command has no arguments and it is active
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else if ( commandArr.length === 1 && document.queryCommandEnabled( command ) && document.queryCommandState( command ) ) {
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self.addClass( options.activeToolbarClass );
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}
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// Else the command is not active
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else {
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self.removeClass( options.activeToolbarClass );
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}
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} );
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}
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};
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Wysiwyg.prototype.execCommand = function( commandWithArgs, valueArg, editor, options, toolbarBtnSelector ) {
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var commandArr = commandWithArgs.split( " " ),
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command = commandArr.shift(),
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args = commandArr.join( " " ) + ( valueArg || "" );
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var parts = commandWithArgs.split( "-" );
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if ( parts.length === 1 ) {
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document.execCommand( command, false, args );
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} else if ( parts[ 0 ] === "format" && parts.length === 2 ) {
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document.execCommand( "formatBlock", false, parts[ 1 ] );
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}
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( editor ).trigger( "change" );
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this.updateToolbar( editor, toolbarBtnSelector, options );
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};
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Wysiwyg.prototype.bindHotkeys = function( editor, options, toolbarBtnSelector ) {
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var self = this;
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$.each( options.hotKeys, function( hotkey, command ) {
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if(!command) return;
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$( editor ).keydown( hotkey, function( e ) {
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if ( editor.attr( "contenteditable" ) && $( editor ).is( ":visible" ) ) {
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e.preventDefault();
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e.stopPropagation();
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self.execCommand( command, null, editor, options, toolbarBtnSelector );
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}
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} ).keyup( hotkey, function( e ) {
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if ( editor.attr( "contenteditable" ) && $( editor ).is( ":visible" ) ) {
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e.preventDefault();
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e.stopPropagation();
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}
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} );
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} );
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editor.keyup( function() { editor.trigger( "change" ); } );
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};
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Wysiwyg.prototype.getCurrentRange = function() {
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var sel, range;
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if ( window.getSelection ) {
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sel = window.getSelection();
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if ( sel.getRangeAt && sel.rangeCount ) {
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range = sel.getRangeAt( 0 );
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}
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} else if ( document.selection ) {
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range = document.selection.createRange();
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}
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return range;
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};
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Wysiwyg.prototype.saveSelection = function() {
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this.selectedRange = this.getCurrentRange();
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};
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Wysiwyg.prototype.restoreSelection = function() {
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var selection;
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if ( window.getSelection || document.createRange ) {
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selection = window.getSelection();
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if ( this.selectedRange ) {
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try {
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selection.removeAllRanges();
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}
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catch ( ex ) {
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document.body.createTextRange().select();
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document.selection.empty();
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}
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selection.addRange( this.selectedRange );
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}
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} else if ( document.selection && this.selectedRange ) {
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this.selectedRange.select();
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}
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};
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// Adding Toggle HTML based on the work by @jd0000, but cleaned up a little to work in this context.
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Wysiwyg.prototype.toggleHtmlEdit = function( editor ) {
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if ( editor.data( "wysiwyg-html-mode" ) !== true ) {
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var oContent = editor.html();
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var editorPre = $( "<pre />" );
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$( editorPre ).append( document.createTextNode( oContent ) );
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$( editorPre ).attr( "contenteditable", true );
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$( editor ).html( " " );
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$( editor ).append( $( editorPre ) );
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$( editor ).attr( "contenteditable", false );
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$( editor ).data( "wysiwyg-html-mode", true );
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$( editorPre ).focus();
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} else {
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$( editor ).html( $( editor ).text() );
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$( editor ).attr( "contenteditable", true );
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$( editor ).data( "wysiwyg-html-mode", false );
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$( editor ).focus();
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}
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};
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Wysiwyg.prototype.insertFiles = function( files, options, editor, toolbarBtnSelector ) {
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var self = this;
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editor.focus();
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$.each( files, function( idx, fileInfo ) {
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if ( /^image\//.test( fileInfo.type ) ) {
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$.when( self.readFileIntoDataUrl( fileInfo ) ).done( function( dataUrl ) {
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self.execCommand( "insertimage", dataUrl, editor, options, toolbarBtnSelector );
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editor.trigger( "image-inserted" );
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} ).fail( function( e ) {
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options.fileUploadError( "file-reader", e );
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} );
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} else {
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options.fileUploadError( "unsupported-file-type", fileInfo.type );
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}
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} );
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};
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Wysiwyg.prototype.markSelection = function( input, color, options ) {
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this.restoreSelection( );
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if ( document.queryCommandSupported( "hiliteColor" ) ) {
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document.execCommand( "hiliteColor", false, color || "transparent" );
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}
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this.saveSelection( );
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input.data( options.selectionMarker, color );
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};
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Wysiwyg.prototype.bindToolbar = function( editor, toolbar, options, toolbarBtnSelector ) {
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var self = this;
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toolbar.find( toolbarBtnSelector ).click( function() {
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self.restoreSelection( );
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editor.focus();
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if ( editor.data( options.commandRole ) === "html" ) {
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self.toggleHtmlEdit( editor );
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} else {
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self.execCommand( $( this ).data( options.commandRole ), null, editor, options, toolbarBtnSelector );
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}
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self.saveSelection( );
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} );
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toolbar.find( "[data-toggle=dropdown]" ).click( this.restoreSelection( ) );
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toolbar.find( "input[type=text][data-" + options.commandRole + "]" ).on( "webkitspeechchange change", function() {
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var newValue = this.value; // Ugly but prevents fake double-calls due to selection restoration
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this.value = "";
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self.restoreSelection( );
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if ( newValue ) {
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editor.focus();
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self.execCommand( $( this ).data( options.commandRole ), newValue, editor, options, toolbarBtnSelector );
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}
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self.saveSelection( );
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} ).on( "focus", function() {
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var input = $( this );
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if ( !input.data( options.selectionMarker ) ) {
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self.markSelection( input, options.selectionColor, options );
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input.focus();
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}
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} ).on( "blur", function() {
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var input = $( this );
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if ( input.data( options.selectionMarker ) ) {
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self.markSelection( input, false, options );
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}
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} );
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toolbar.find( "input[type=file][data-" + options.commandRole + "]" ).change( function() {
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self.restoreSelection( );
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if ( this.type === "file" && this.files && this.files.length > 0 ) {
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self.insertFiles( this.files, options, editor, toolbarBtnSelector );
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}
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self.saveSelection( );
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this.value = "";
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} );
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};
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Wysiwyg.prototype.initFileDrops = function( editor, options, toolbarBtnSelector ) {
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var self = this;
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editor.on( "dragenter dragover", false ).on( "drop", function( e ) {
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var dataTransfer = e.originalEvent.dataTransfer;
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e.stopPropagation();
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e.preventDefault();
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if ( dataTransfer && dataTransfer.files && dataTransfer.files.length > 0 ) {
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self.insertFiles( dataTransfer.files, options, editor, toolbarBtnSelector );
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}
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} );
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};
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/*
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||
|
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* Represenets an editor
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||
|
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* @constructor
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||
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* @param {object} userOptions - The default options selected by the user.
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*/
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$.fn.wysiwyg = function( userOptions ) {
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var wysiwyg = new Wysiwyg( this, userOptions );
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};
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} )( window, window.jQuery );
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